Trials / Unknown

UnknownNCT01763099

Mesenchymal Stem Cells Combined With Cord Blood for Treatment of Graft Failure

Mesenchymal Stem Cells Combined With Cord Blood for Treatment of Graft Failure Following Autologous Hematopoietic Stem Cell Transplantation

Status: Unknown
Phase: Phase 2
Study type: Interventional
Enrollment: 60 (estimated)

Sponsor: Nanfang Hospital, Southern Medical University · Academic / Other
Sex: All
Age: 14 Years – 65 Years
Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the utility of treating patients experiencing graft failure after autologous hematopoietic stem cell transplantation with ex-vivo-expanded BM-drived mesenchymal stem cells from third-party donors or mesenchymal stem cells combined with cord blood. The first objective of this study was to evaluate the effect of such treatment on graft failure, and second object was to investigate the safety of such treatment.

Detailed description

Autologous hematopoietic stem cell transplantation (auto-HSCT) are considered the standard of care for many malignancies, such as lymphoma, myeloma and some leukemias, and so on. Graft failure after auto-HSCT is a formidable complication. It occurs in 2-9.5% of patients and is associated with considerable morbidity and mortality related to infections and hemorrhagic complications. There are various options for the management of graft failure. The most common treatment of graft failure is growth factors such as granulocyte colony-stimulating factor (G-CSF)and recombinant erythropoietin,but it usually effective in the short term and no effect on platelet counts. Mesenchymal stem cells (MSCs) are a form of multipotent adult stem cells that can be isolated from bone marrow (BM), adipose tissue, and cord blood. Clinical applications of human MSCs are evolving rapidly with goals of improving hematopoietic engraftment, preventing and treating graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplantation and so on.As an important source of hematopoietic stem cell, cord blood has been widely used in clinical practice. It is reported that cord blood combined with MSCs can increase engraftment after allogeneic hematopoietic stem cell transplantation. However, to our knowledge, the report about efficacy of treatment of graft that develops after auto-HSCT using expanded BM-derived MSCs from a third-party donor combined with cord blood is absent.If such treatment could be shown to be effective and safe, BM-derived MSCs could potentially be used as an universal donor material. This would have a major impact because the generation of donor-specific MSCs is time-consuming, costly, and often impractical if the clinical status of a patient is urgent. In the present study, the investigators will prospectively evaluate the efficacy and safety of ex-vivo-expanded BM-derived MSCs from third-party donors or MSCs combined with cord blood in treating patients with graft failure after auto-HSCT.

Conditions

Interventions

Type	Name	Description
BIOLOGICAL	Mesenchymal stem cells	Mesenchymal stem cells will be intravenously infused via a central venous catheter(at a dose of 1×10\^6 cells/kg, over 15 min) in day 1 and day 15 of the cycle. If the NEU and PLT levels do not attain the completely response(CR)standards after this cycle, mesenchymal stem cells combined with cord blood will be given. If the NEU and PLT levels attain the completely response(CR)or partly response(PR) standards after this cycle, another cycle with the same strategy will be given.
BIOLOGICAL	Mesenchymal stem cells and cord blood	Mesenchymal stem cells will be given (at a dose of 1×10\^6 cells/kg,intravenously infused via a central venous catheter)on day 1.day 15, day 29 and day 43 of the cycle. Cord blood will be given intravenously infused via a central venous catheter on day 2 of the cycle.

Timeline

Start date: 2013-01-01
Primary completion: 2015-01-01
Completion: 2016-01-01
First posted: 2013-01-08
Last updated: 2013-01-16

Locations

1 site across 1 country: China

Source: ClinicalTrials.gov record NCT01763099. Inclusion in this directory is not an endorsement.